Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7568900 | Apparatus for making a reinforced fibrous absorbent member Apparatus for making a reinforced absorbent member includes a forming chamber adapted to contain a fluent fibrous material. A forming surface is moveable within the forming chamber along an arcuate path generally from an entrance of the forming chamber to an exit th... | 08/04/2009 |
| 7404921 | Method and system for the manufacture of annular fibrous preforms Free fibers (10) are deposited on a rotary support turntable (30) by means of a hollow deposition cone (40) having an outer wall surrounding a chamber and pierced by multiple perforations. The fibers are delivered to the outer surface of the per... | 07/29/2008 |
| 7354502 | Method for making a fibrous structure comprising cellulosic and synthetic fibers A method for making a fibrous structure, the method comprising the steps of: providing a mixture of synthetic fibers and short cellulosic fibers onto a forming member so as to form one or more layers including the mixture of synthetic fibers and short cellulosic fib... | 04/08/2008 |
| 7322815 | System for the production of composite material slabs The invention relates to a system for the production of slabs of composite material characterized by a particular unloading system of the material from the mixers (1, 2) to a homogenizing disc (7) so as to provide a constant, homogeneous composition of... | 01/29/2008 |
| 7244387 | Apparatus and method for manufacturing an absorbent core An apparatus and a method for manufacturing an absorbent core for an absorbent product containing a first material and a second material dispersed throughout at least a portion of said first material. A rotating forming wheel produces the absorbent core in a mold pr... | 07/17/2007 |
| 7207793 | Method and apparatus for introducing an additive to a composite panel A method of forming a composite panel includes the steps of supplying a material to a forming station, supplying a dry additive to the material at the forming station, producing a mat comprising the material and the additive, and applying heat and pressure to the ma... | 04/24/2007 |
| 7134858 | System for hot pressing cellulosic and lignocellulosic mats A system for pressing lignocellulosic and/or cellulosic materials to produce composite products such as medium density fiberboard subjects a mat of material to alternating or vibratory forces applied to a face surface of the mat. The frequency of the alternating for... | 11/14/2006 |
| 7103445 | System and method for controlling the dispense rate of particulate material A system and method for dispensing super absorbent material (SAM) to a machine manufacturing absorbent articles as part of a manufacturing processing operation. A first controller stores process control data relating to the manufacturing processing operation and pro... | 09/05/2006 |
| 7094373 | Process and apparatus for air forming an article having a plurality of reinforced superimposed fibrous layers A process and apparatus for air forming an article having a plurality of superimposed reinforced fibrous layers. The layers are formed in substantially discrete forming chambers by depositing fibrous materials on a forming surface which moves along a forming path th... | 08/22/2006 |
| 7004300 | Adjustable disc roll for longitudinally orienting elongated wood chips An apparatus for longitudinally orienting pre-glued elongated wood strands for forming OSB panels includes a spreading head with disc rolls that each have discs arranged parallel to one another on a rotatable shaft arranged over a forming belt. The discs of a given ... | 02/28/2006 |
| 6982052 | Process and apparatus for air forming an article having a plurality of superimposed fibrous layers Process and apparatus for air forming an article having a plurality of superimposed fibrous layers. The layers are formed in substantially discrete forming chambers by depositing fibrous material on a forming surface which moves along an arcuate path through the cha... | 01/03/2006 |
| 6848894 | Absorbent article, method and apparatus for preparing same An apparatus and a method for preparing an absorbent article is disclosed. The apparatus has at least two forming surfaces which differ in terms of air permeability to allow the selective placement of fibrous material. The forming surface comprises a perforated form... | 02/01/2005 |
| 6652789 | Composite veneer The method and apparatus for forming composite wood products particularly composite veneer like products which may be intermediate products and laminated to form the final composite product. Strands are fed from a source of supply at a metered rate, entra... | 11/25/2003 |
| 6652798 | Method and an apparatus for forming air-laid fibrous absorbent cores A method and an apparatus for forming air-laid fibrous absorbent cores comprises a first supply of air-entrained fibrous material and a first air-laying element connected with the first supply of air-entrained fibrous material and having a movable first p... | 11/25/2003 |
| 6623264 | Unit for making pre-shaped absorbent pads for sanitary items A unit for making pre-shaped absorbent pads for sanitary items is equipped with a continuous conveyor belt with an operating branch which defines a line for pad forming and feed; the branch extends along a straight path, along which there are three succes... | 09/23/2003 |
| 6604926 | Apparatus for producing absorbent pads from a flock-air mixture In an apparatus for and method of producing absorbent pads from a flock-air mixture which is fed through a feed conduit to a shaping recess carrier to form the respective absorbent pad, the carrier rotates or circulates in a predetermined direction of ope... | 08/12/2003 |
| 6533978 | Process and apparatus for forming a stabilized absorbent web An apparatus and process for forming an absorbent web (26) includes an airlaying of a first fibrous stratum (28) which has a first quantity of absorbent fibers; an airlaying of a second fibrous stratum (34) which has a second quantity of absorbent fibers;... | 03/18/2003 |
| 6533989 | Multi-chamber process and apparatus for forming a stabilized absorbent web An apparatus and process for forming an absorbent web (26) includes an airlaying of a first fibrous stratum (28), and an airlaying of an intermediate fibrous stratum (40) onto the first fibrous stratum. A liquid, wet-strength agent is distributed onto fib... | 03/18/2003 |
| 6517753 | Method and device for forming a mat of particle board A method and a device for continuous forming of a mat of particle lignocellulosic material by means of a batching unit (12) with a distribution chamber (15) in connection with the manufacture of board. The material is deposited on a continuous forming web... | 02/11/2003 |
| 6499981 | Drawing unit A drawing unit including two or more slits extending in a widthwise direction of a collecting conveyor, each slit including an inlet for sucking groups of filaments pushed out from a spinneret, a path in which air currents flowing in a suction direction i... | 12/31/2002 |
| 6423255 | Method for manufacturing a structural part by deposition technique A method for manufacturing a structural part by a multi-layer deposition technique, in particular a part in the form of a casting mold or a casting core, a porous first layer of bulk particulate material consisting of particles of a predetermined particle... | 07/23/2002 |
| 6409856 | Apparatus for smoothing out the surface weight distribution of mats An apparatus is described for smoothing out the surface weight distribution of one or multilayer mats containing lignocellulose and/or cellulose with a binding agent dispersed therein for manufacturing of shaped articles, in particular in the form of wood... | 06/25/2002 |
| 6399001 | Procedure for the fabrication of a blank for a structural product Procedure for the fabrication of a blank for a structural product, such as a blank for a structural board, from material (1) comprising longer (L) and shorter (S) particles and possibly also particles (F) smaller than these. The particles are mixed with a... | 06/04/2002 |
| 6247914 | Casing material and a method and apparatus for its manufacture The invention relates to a method and to an apparatus for perforating a web of material intended to form an outer casing sheet of absorbent articles. As the web is advanced, the web is first provided with a large number of mutually separated cuts in the n... | 06/19/2001 |
| 6207099 | Process for uniform cross-direction distribution of particulate material A method for forming a substantially uniform distribution of particulate material within a fibrous web includes a conveying step for providing a gas entrained supply of the particulate material. A transferring step directs the particulate material into a ... | 03/27/2001 |
| 6135747 | Apparatus for making mineral fiber insulation batt impregnated with extruded synthetic fibers Apparatus for impregnating surfaces, including edge surfaces, of fiberglass insulation batts with synthetic fibers, comprising a conveyor for advancing the batts in a common direction and, initially, in a side-by-side orientation. Separators thereafter in... | 10/24/2000 |
| 6074193 | Apparatus for fabricating chipboards or fiber boards of cellulose material Apparatus for fabricating chip boards or fiber boards of cellulosic material, includes a press, and a press form station arranged upstream of the press and having a storage bin for retaining a material in the form of chips or fibers and a conveyor belt ar... | 06/13/2000 |
| 6053719 | Apparatus for the manufacture of a spun nonwoven fabric The apparatus for manufacturing the nonwoven fabric contains at least one, and may contain up to forty or more, spinneret devices, such as rectangular spinneret plates or round spinneret disks. The spinneret devices may be arranged in rows or in staggered... | 04/25/2000 |
| 6033199 | Apparatus for forming an intermittent stream of particles for application to a fibrous web The present invention provides an apparatus for applying discrete particles of absorbent material to a predetermined location on a fibrous web. The apparatus comprises a continuously rotating mask, and a means for directing a supply stream of absorbent pa... | 03/07/2000 |
| 5972265 | Method and apparatus for producing composites A method and system (10) for producing a composite material (108) from particles (102) and binder (104), is described. The system includes a feed zone (12), a unilayering zone (14), a mat reforming zone (16) and a compaction zone (18) all closely coupled ... | 10/26/1999 |
| 5948342 | Rapid prototyping method of sintering powdery material and fabricating apparatus using the same A rapid prototyping method utilizing a powder sintering process and an apparatus for fabricating a product, utilizing the method. The rapid prototyping method includes steps of slicing an image of a product to be fabricated into a number of layers, prepar... | 09/07/1999 |
| 5888340 | Method and apparatus for aligning discontinuous fibers A method and apparatus for aligning discontinuous fibers (F 101, 212) is described. A feeder apparatus (20, 120, 220, 220A) is used to align the fibers in a horizontal plane for feeding to the aligning apparatus (40, 140, 240, 240A) providing an electrica... | 03/30/1999 |
| 5885623 | Arrangement for air-layer fibre bodies on a moving air-permeable conveyor path An arrangement for fibre-laying on a moving air-permeable conveyor path (2) fibre bodies which are comprised of at least two different layers. The arrangement includes for each fibre layer a succession of air-laying units disposed sequentially in the dire... | 03/23/1999 |
| 5885516 | Method and a system for manufacturing broad airlaid paper webs containing an absorbing powder Method and apparatus of forming an air laid paper web. Superabsorbing powder is introduced at an intermediate stage between the initial supply of the fibers to the air laying unit and the final formation of the web. A first coarse distribution of the powd... | 03/23/1999 |
| 5866173 | Apparatus for producing absorbent products An absorbent core for use in an absorbent article for absorbing discharged bodily fluid includes a first absorbent material dispersed throughout the core, and a second absorbent material provided in a discrete strip, and substantially surrounded by the fi... | 02/02/1999 |
| 5820888 | Apparatus for producing a spun-bond web from synthetic resin filaments A spun-bond apparatus has at the lower edge of the diffuser below the filaments stretching shaft, cooler and spinneret, partitions which run from the lower edge of the diffuser to upper rollers and pressing roller pairs upstream and downstream of the diff... | 10/13/1998 |
| 5762844 | Side-by-side absorbent pad forming A distinctive method and apparatus (20) for forming a composite fibrous web (22) includes a web supply (24, 25), which provides at least two appointed fiber layer sections (26, 28) of desired fiber material. Each of the layer sections (26, 28) has a selec... | 06/09/1998 |
| 5756039 | Method and apparatus for forming a multi-segment core An apparatus and method are disclosed for forming a sanitary napkin having a multi-segment core. Such a core is formed using a mold having a deposition cavity which is divided into cavity segments by at least one partition. Each partition can comprise a p... | 05/26/1998 |
| 5728083 | Multilayered absorbent structures A multilayered absorbent structure is disclosed. The absorbent structure has a plurality of absorbent planar regions defined by decreasing pore size with increasing depth into the region. Generally, each planar region has an absorbent layer having relativ... | 03/17/1998 |
| 5620712 | Apparatus for making the topsheet of a fluid absorptive article A topsheet for use in body fluid absorptive articles is so improved that collapse and clogging of liquid passages therein may be reliably avoided. The topsheet includes an upper sheet, provided with skin-contacting areas and liquid passages, and a lower s... | 04/15/1997 |
